Acoustic absorption coefficient of open-cell polyolefin-based foams

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dc.citation.journalTitleMATERIALS LETTERSspa
dc.contributor.authorAlvarez-Lainez, Monica
dc.contributor.authorAngel Rodriguez-Perez, Miguel
dc.contributor.authorAntonio de Saja, Jose
dc.contributor.departmentUniversidad EAFIT. Departamento de Ingeniería de Diseño
dc.contributor.researchgroupIngeniería de Diseño (GRID)spa
dc.date.accessioned2021-04-12T21:12:13Z
dc.date.available2021-04-12T21:12:13Z
dc.date.issued2014-04-15
dc.description.abstractThe acoustic absorption of open-cell polyolefin (PO) foams with densities between 23 and 64 kg/m3 has been measured and compared with that of open-cell polyurethane (PU) foams. Acoustic parameters related to the cellular structure, such as porosity, tortuosity and airflow resistivity, were also measured. PO foams show higher tortuosity and airflow resistivity than the PU open-cell foam; as a consequence, they show a higher absorption coefficient than PU open-cell foam in the frequency range between 1000 and 2000 Hz. We also modeled the acoustic behavior using the Biot-Allard theory with the Johnson approach, fitted using a genetic algorithm. The fits of the acoustic absorption coefficient as a function of frequency were reasonably consistent with the experimental results. © 2014 Elsevier B.V.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1552
dc.identifier.doi10.1016/j.matlet.2014.01.061
dc.identifier.issn0167577X
dc.identifier.issn18734979
dc.identifier.otherWOS;000334084600008
dc.identifier.otherSCOPUS;2-s2.0-84893985221
dc.identifier.urihttp://hdl.handle.net/10784/28800
dc.language.isoengeng
dc.publisherELSEVIER SCIENCE BV
dc.relationDOI;10.1016/j.matlet.2014.01.061
dc.relationWOS;000334084600008
dc.relationSCOPUS;2-s2.0-84893985221
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84893985221&doi=10.1016%2fj.matlet.2014.01.061&partnerID=40&md5=d9f10bc3223c00a66f5312892405091c
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0167-577X
dc.sourceMATERIALS LETTERS
dc.subject.keywordAcoustic absorptioneng
dc.subject.keywordBiot-Allard modeleng
dc.subject.keywordOpen-cell foamseng
dc.subject.keywordPolyolefineng
dc.titleAcoustic absorption coefficient of open-cell polyolefin-based foamseng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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